I found it interesting reading the history that the light was a locomotive headlight, since the govt. ran out of money and couldn't buy a proper one.

By April of 1883 construction was completed. The front light, painted bright white with lead trim, stood proud and was ready for duty. As I mentioned earlier, this Lighthouse looked more like a keeper’s cottage, than a traditional tall standing Lighthouse like Tybee. Never the less, the red kerosene light that shone from the single large upstairs dormer window worked to perfection. The back light, located 4350 ft. inland was also unusual for a Lighthouse. It seems Congress had appropriated insufficient funds for a "proper" Lighthouse (imagine that) and erected a triangular white metal tower, like our cell towers of today. The source of light was a locomotive head-light in the form of a powerful parabolic reflector (red beam with a range of 12 miles). The light was kept in the "lamp room" an 8 by 10 ft. brick building where it was cleaned, maintained and stored during the day. At night the Keeper would run the light up on rails to a height of 81 feet. The entire system worked perfectly, all that was needed was a Lighthouse Keeper.